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DPChallenge Forums >> Tips, Tricks, and Q&A >> Upsizing in Canon RAW question?
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05/12/2009 02:11:02 PM · #1
Ok,

I am currently upsizing a couple of photographs for a funeral this friday. Two of the shots are going to be 16x24 inches which I have had success with in the past. The third may need to be as big as 48x60 inches from an 8x10 inch photo which is new territory for me.

I have had good success in photoshop but I just had a couple of ideas/questions that I would like to ask some of the techies for some input.

In Canon Raw when you open a raw file at the bottom you can click the SRGB link which opens a workflow options box giving you options of color space, depth, size, and resolution. I was wondering if I should click the largest size in the size option and increase the resolution up to let's say 500 knowing that i am going to increase the size.

Would doing this is raw create a better ground floor to work with? or should I stick to doing it in PS upsizing using bicubic sharpener?

My other thought would be to take multiple shots of the 5x7 or 8x10 and then stitch them together and start with that?

Any thoughts or ideas would be much appreciated.

Mike

Message edited by author 2009-05-12 14:12:02.
05/12/2009 02:31:28 PM · #2
I've wondered that question as well, but I suspect that PS uses the same software to upscale from the RAW or from the PSD file you are working on in Photoshop. When upscaling in PS you want to select Bicubic Smoother (seems counterintuitive, but this has been borne out in testing).

Doing a panorama would also be interesting, but ultimately you are going to be limited to the resolution of the print you are shooting and I'm guessing that your 1D Mark III is going to be nearly at the picture's limit anyway.

48x60 is probably doable, especially if the picture is going to be behind the coffin or something where people will not be peeping at the individual dots from a foot. I have a 36x48 printed on canvas from a single 5D file and it looks pristine at a viewing distance of 10 feet (I have it high on a wall in a vaulted entry). Even closeup it looks great although the canvas allows for some fudging of detail by adding texture.
05/12/2009 08:38:57 PM · #3
I thought we were supposed to use bicubic sharper when enlarging? I think it may have been one of Brad's post where I heard that. Hmm?
05/12/2009 08:44:53 PM · #4
Originally posted by ShutterHack:

I thought we were supposed to use bicubic sharper when enlarging? I think it may have been one of Brad's post where I heard that. Hmm?


Bicubic sharper for downsizing and bicubic smoother for upsizing though I've known people to use sharper when upsizing with great success.
05/13/2009 12:43:58 AM · #5
Originally posted by cpanaioti:

Bicubic sharper for downsizing and bicubic smoother for upsizing though I've known people to use sharper when upsizing with great success.


Ya, I read it somewhere that sharper actually did a better job. I wonder if it differs with CS3 and CS4?

I do know one thing for sure. It is to do all your editing such as dodging cloning and spot removal before upsizing it.
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